<?php/*V4.54 5 Nov 2004  (c) 2000-2004 John Lim (jlim@natsoft.com.my). All rights reserved.  Released under both BSD license and Lesser GPL library license.  Whenever there is any discrepancy between the two licenses,  the BSD license will take precedence.Set tabs to 4 for best viewing.  Latest version is available at http://adodb.sourceforge.net  DB2 data driver. Requires ODBC.From phpdb list:Hi Andrew,thanks a lot for your help. Today we discovered whatour real problem was:After "playing" a little bit with the php-scripts that tryto connect to the IBM DB2, we set the optional parameterCursortype when calling odbc_pconnect(....).And the exciting thing: When we set the cursor typeto SQL_CUR_USE_ODBC Cursor Type, thenthe whole query speed up from 1 till 10 secondsto 0.2 till 0.3 seconds for 100 records. Amazing!!!Therfore, PHP is just almost fast as calling the DB2from Servlets using JDBC (don't take too much careabout the speed at whole: the database was on acompletely other location, so the whole connectionwas made over a slow network connection).I hope this helps when other encounter the sameproblem when trying to connect to DB2 fromPHP.Kind regards,Christian Szardenings2 Oct 2001Mark Newnham has discovered that the SQL_CUR_USE_ODBC is not supported byIBM's DB2 ODBC driver, so this must be a 3rd party ODBC driver.From the IBM CLI Reference:SQL_ATTR_ODBC_CURSORS (DB2 CLI v5)This connection attribute is defined by ODBC, but is not supported by DB2CLI. Any attempt to set or get this attribute will result in an SQLSTATE ofHYC00 (Driver not capable).A 32-bit option specifying how the Driver Manager uses the ODBC cursorlibrary.So I guess this means the message [above] was related to using a 3rd partyodbc driver.Setting SQL_CUR_USE_ODBC========================To set SQL_CUR_USE_ODBC for drivers that require it, do this:$db = NewADOConnection('db2');$db->curMode = SQL_CUR_USE_ODBC;$db->Connect($dsn, $userid, $pwd);USING CLI INTERFACE===================I have had reports that the $host and $database params have to be reversed inConnect() when using the CLI interface. From Halmai Csongor csongor.halmai#nexum.hu:> The symptom is that if I change the database engine from postgres or any other to DB2 then the following> connection command becomes wrong despite being described this version to be correct in the docs.>> $connection_object->Connect( $DATABASE_HOST, $DATABASE_AUTH_USER_NAME, $DATABASE_AUTH_PASSWORD, $DATABASE_NAME )>> In case of DB2 I had to swap the first and last arguments in order to connect properly.*/// security - hide pathsif (!defined('ADODB_DIR')) die();if (!defined('_ADODB_ODBC_LAYER')) {	include(ADODB_DIR."/drivers/adodb-odbc.inc.php");}if (!defined('ADODB_DB2')){define('ADODB_DB2',1);class ADODB_DB2 extends ADODB_odbc {	var $databaseType = "db2";	var $concat_operator = '||';	var $sysDate = 'CURRENT_DATE';	var $sysTimeStamp = 'CURRENT TIMESTAMP';	// The complete string representation of a timestamp has the form	// yyyy-mm-dd-hh.mm.ss.nnnnnn.	var $fmtTimeStamp = "'Y-m-d-H.i.s'";	var $ansiOuter = true;	var $identitySQL = 'values IDENTITY_VAL_LOCAL()';	var $_bindInputArray = true;	 var $hasInsertID = true;	function ADODB_DB2()	{		if (strncmp(PHP_OS,'WIN',3) === 0) $this->curmode = SQL_CUR_USE_ODBC;		$this->ADODB_odbc();	}	function IfNull( $field, $ifNull )	{		return " COALESCE($field, $ifNull) "; // if DB2 UDB	}	function ServerInfo()	{		//odbc_setoption($this->_connectionID,1,101 /*SQL_ATTR_ACCESS_MODE*/, 1 /*SQL_MODE_READ_ONLY*/);		$vers = $this->GetOne('select versionnumber from sysibm.sysversions');		//odbc_setoption($this->_connectionID,1,101, 0 /*SQL_MODE_READ_WRITE*/);		return array('description'=>'DB2 ODBC driver', 'version'=>$vers);	}	function _insertid()	{		return $this->GetOne($this->identitySQL);	}	function RowLock($tables,$where)	{		if ($this->_autocommit) $this->BeginTrans();		return $this->GetOne("select 1 as ignore from $tables where $where for update");	}	function &MetaTables($ttype=false,$showSchema=false, $qtable="%", $qschema="%")	{	global $ADODB_FETCH_MODE;		$savem = $ADODB_FETCH_MODE;		$ADODB_FETCH_MODE = ADODB_FETCH_NUM;		$qid = odbc_tables($this->_connectionID, "", $qschema, $qtable, "");		$rs = new ADORecordSet_odbc($qid);		$ADODB_FETCH_MODE = $savem;		if (!$rs) {			$false = false;			return $false;		}		$rs->_has_stupid_odbc_fetch_api_change = $this->_has_stupid_odbc_fetch_api_change;		$arr =& $rs->GetArray();		//print_r($arr);		$rs->Close();		$arr2 = array();		if ($ttype) {			$isview = strncmp($ttype,'V',1) === 0;		}		for ($i=0; $i < sizeof($arr); $i++) {			if (!$arr[$i][2]) continue;			if (strncmp($arr[$i][1],'SYS',3) === 0) continue;			$type = $arr[$i][3];			if ($showSchema) $arr[$i][2] = $arr[$i][1].'.'.$arr[$i][2];			if ($ttype) {				if ($isview) {					if (strncmp($type,'V',1) === 0) $arr2[] = $arr[$i][2];				} else if (strncmp($type,'T',1) === 0) $arr2[] = $arr[$i][2];			} else if (strncmp($type,'S',1) !== 0) $arr2[] = $arr[$i][2];		}		return $arr2;	}	// Format date column in sql string given an input format that understands Y M D	function SQLDate($fmt, $col=false)	{	// use right() and replace() ?		if (!$col) $col = $this->sysDate;		$s = '';		$len = strlen($fmt);		for ($i=0; $i < $len; $i++) {			if ($s) $s .= '||';			$ch = $fmt[$i];			switch($ch) {			case 'Y':			case 'y':				$s .= "char(year($col))";				break;			case 'M':				$s .= "substr(monthname($col),1,3)";				break;			case 'm':				$s .= "right(digits(month($col)),2)";				break;			case 'D':			case 'd':				$s .= "right(digits(day($col)),2)";				break;			case 'H':			case 'h':				if ($col != $this->sysDate) $s .= "right(digits(hour($col)),2)";				else $s .= "''";				break;			case 'i':			case 'I':				if ($col != $this->sysDate)					$s .= "right(digits(minute($col)),2)";					else $s .= "''";				break;			case 'S':			case 's':				if ($col != $this->sysDate)					$s .= "right(digits(second($col)),2)";				else $s .= "''";				break;			default:				if ($ch == '\\') {					$i++;					$ch = substr($fmt,$i,1);				}				$s .= $this->qstr($ch);			}		}		return $s;	}	function &SelectLimit($sql,$nrows=-1,$offset=-1,$inputArr=false)	{		if ($offset <= 0) {		// could also use " OPTIMIZE FOR $nrows ROWS "			if ($nrows >= 0) $sql .=  " FETCH FIRST $nrows ROWS ONLY ";			$rs =& $this->Execute($sql,$inputArr);		} else {			if ($offset > 0 && $nrows < 0);			else {				$nrows += $offset;				$sql .=  " FETCH FIRST $nrows ROWS ONLY ";			}			$rs =& ADOConnection::SelectLimit($sql,-1,$offset,$inputArr);		}		return $rs;	}};class  ADORecordSet_db2 extends ADORecordSet_odbc {	var $databaseType = "db2";	function ADORecordSet_db2($id,$mode=false)	{		$this->ADORecordSet_odbc($id,$mode);	}	function MetaType($t,$len=-1,$fieldobj=false)	{		if (is_object($t)) {			$fieldobj = $t;			$t = $fieldobj->type;			$len = $fieldobj->max_length;		}		switch (strtoupper($t)) {		case 'VARCHAR':		case 'CHAR':		case 'CHARACTER':		case 'C':			if ($len <= $this->blobSize) return 'C';		case 'LONGCHAR':		case 'TEXT':		case 'CLOB':		case 'DBCLOB': // double-byte		case 'X':			return 'X';		case 'BLOB':		case 'GRAPHIC':		case 'VARGRAPHIC':			return 'B';		case 'DATE':		case 'D':			return 'D';		case 'TIME':		case 'TIMESTAMP':		case 'T':			return 'T';		//case 'BOOLEAN':		//case 'BIT':		//	return 'L';		//case 'COUNTER':		//	return 'R';		case 'INT':		case 'INTEGER':		case 'BIGINT':		case 'SMALLINT':		case 'I':			return 'I';		default: return 'N';		}	}}} //define?>